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Hydro-upgrading catalyst for coal tar and preparation method of catalyst

A technology for hydrogenation and upgrading and catalyst, which can be used in molecular sieve catalysts, chemical instruments and methods, and hydrogenation of aromatic hydrocarbons, etc., and can solve the problem of low activity and so on.

Pending Publication Date: 2016-11-23
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a coal tar distillate oil hydrotreating and upgrading catalyst and its preparation method. The catalyst of the present invention overcomes the shortcomings of existing distillate oil hydrotreating catalysts such as low activity, and not only has suitable pore volume, pore diameter, and hydrogenation center And acid center, and has good mechanical strength and water resistance, under the condition of hydrogenation, it can effectively remove impurities sulfur, nitrogen, colloid and asphaltenes, saturated aromatic components in coal tar fractions and make some aromatics ring open

Method used

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  • Hydro-upgrading catalyst for coal tar and preparation method of catalyst
  • Hydro-upgrading catalyst for coal tar and preparation method of catalyst
  • Hydro-upgrading catalyst for coal tar and preparation method of catalyst

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Embodiment 1

[0044] The calcined kaolin was treated with a phosphoric acid solution with a concentration of 2 mol / L in a water bath at 60°C for 6 hours with stirring, and the phosphoric acid dosage was 20 mL / g kaolin. Afterwards, the solution was aged in a water bath at 60° C. for 2 h. After the treatment, the entire treatment mixture was directly placed in an oven at 100° C. for 12 h to evaporate the water. Then, under the condition of a water bath at 50° C., tetraethyl orthosilicate was added to the treated kaolin, and the added amount was 20% of the mass of the kaolin. Add the complex compound of diethylenetriaminepentacarboxylic acid wherein Fe again, in terms of oxides, the consumption of Fe is 3.5% of kaolin weight, and the ratio of the molar weight of required complexing agent to the molar weight of Fe is 1 :1. Then add di-n-propylamine to the mixture system, the consumption of di-n-propylamine is 15% of the mass of kaolin. Under the condition of 50°C water bath, stir for 4h. Co...

Embodiment 2

[0046] The calcined kaolin was treated with a phosphoric acid solution with a concentration of 2 mol / L in a water bath at 60°C for 6 hours with stirring, and the phosphoric acid dosage was 20 mL / g kaolin. Afterwards, the solution was aged in a water bath at 60°C for 2 hours. After the treatment, the entire treatment mixture was directly placed in an oven at 100° C. for 12 h to evaporate the water. Then, under the condition of a water bath at 50° C., tetraethyl orthosilicate was added to the treated kaolin, and the added amount was 20% of the mass of the kaolin. Add the complex compound of the diethylenetriaminepentacarboxylic acid of Mn again wherein, in terms of oxides, the consumption of Mn is 3.5% of the kaolin quality, and the ratio of the molar weight of required complexing agent to the molar weight of Mn is 1 :1. Then add di-n-propylamine to the mixture system, the consumption of di-n-propylamine is 15% of the mass of kaolin. Under the condition of 50°C water bath, st...

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Abstract

The invention discloses a hydro-upgrading catalyst for coal tar and a preparation method of the catalyst. The catalyst is prepared from an active metal component, a catalyst promoter component and a carrier, wherein the active metal component is selected from one or more metal elements of Ni, Mo, Co and W, the catalyst promoter component is P2O5 or is selected from one or more metal elements of Fe and Mn, and the carrier is phosphoric acid modified kaolin; the weight of the active metal component is 10%-30% of that of the carrier on the basis of oxide, the weight of metal elements in the catalyst promoter component is 3%-7% of that of the carrier on the basis of oxide, and the dosage of phosphoric acid is 1%-4% of the weight of the carrier. The hydro-upgrading catalyst not only has good hydrogen desulfurization, denitrification and colloid removal activity, but also has higher aromatics saturation and ring opening capability.

Description

technical field [0001] The invention relates to a coal tar hydrogenation upgrading catalyst, in particular to a coal tar fraction hydrogenation upgrading catalyst and a preparation method thereof. Background technique [0002] Coal tar is a by-product of high-temperature thermal cracking of coal. Its liquid product has the characteristics of natural crude oil, but compared with ordinary crude oil, it has high density, high viscosity, high sulfur content, especially high nitrogen content, high residual carbon, and asphaltenes. High, so the quality is poor and more difficult to process. With the increasing consumption of petroleum resources worldwide and the increase in the proportion of domestic imported crude oil year by year, how to rationally use coal tar, a petroleum substitute, to obtain high-quality fuel oil and other chemical raw materials has attracted more and more attention. [0003] At present, some domestic coal tar production enterprises mainly process coal tar ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/85C10G45/12C10G45/54C10G49/08
Inventor 闫琛洋史雪君杜少春车中山余海鹏吴道洪
Owner SHENWU TECH GRP CO LTD